5,6-Dihydroxycytosine

5,6-Dihydroxycytosine (Isouramil) can be formed from treatment of DNA with osmium tetroxide.

5,6-Dihydroxycytosine

Names
Preferred IUPAC name 6-Amino-5-hydroxypyrimidine-2,4(1H,3H)-dione
Other names 6-Amino-2,4,5-trihydroxypyrimidine
Identifiers
CAS Number	3914-34-9
3D model (JSmol)	Interactive image
ChemSpider	69925
PubChem CID	77518
CompTox Dashboard (EPA)	DTXSID90192387
InChI InChI=1S/C4H5N3O3/c5-2-1(8)3(9)7-4(10)6-2/h8H,(H4,5,6,7,9,10) Key: SPOYOCCBDWULRZ-UHFFFAOYSA-N
SMILES c1(c([nH]c(=O)[nH]c1=O)N)O
Properties
Chemical formula	C4H5N3O3
Molar mass	143.102 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references